$.extend($.fn.datagrid.methods, {   
		    /**
		     * 开打提示功能  
		     * @param {} jq  
		     * @param {} params 提示消息框的样式  
		     * @return {}  
		     */  
		    doCellTip : function(jq, params) {   
		        function showTip(data, td, e) {   
		            if ($(td).text() == "")   
		                return;   
		            data.tooltip.text($(td).text()).css({   
		                        top : (e.pageY + 10) + 'px',   
		                        left : (e.pageX + 20) + 'px',   
		                        'z-index' : $.fn.window.defaults.zIndex,   
		                        display : 'block'   
		                    });   
		        };   
		        return jq.each(function() {   
		            var grid = $(this);   
		            var options = $(this).data('datagrid');   
		            if (!options.tooltip) {   
		                var panel = grid.datagrid('getPanel').panel('panel');   
		                var defaultCls = {   
		                    'border' : '1px solid #333',   
		                    'padding' : '1px',   
		                    'color' : '#333',   
		                    'background' : '#f7f5d1',   
		                    'position' : 'absolute',   
		                    'max-width' : '200px',   
		                    '-moz-border-radius' : '4px',   
		                    '-webkit-border-radius' : '4px',   
		                    'display' : 'none'   
		                }   
		                var tooltip = $("<div id='celltip'></div>").appendTo('body');   
		                tooltip.css($.extend({}, defaultCls, params.cls));   
		                options.tooltip = tooltip;   
		                panel.find('.datagrid-body').each(function() {   
		                    var delegateEle = $(this).find('> div.datagrid-body-inner').length   
		                            ? $(this).find('> div.datagrid-body-inner')[0]   
		                            : this;   
		                    $(delegateEle).undelegate('td', 'mouseover').undelegate(   
		                            'td', 'mouseout').undelegate('td', 'mousemove')   
		                            .delegate('td', {   
		                                'mouseover' : function(e) {   
		                                    if (params.delay) {   
		                                        if (options.tipDelayTime)   
		                                            clearTimeout(options.tipDelayTime);   
		                                        var that = this;   
		                                        options.tipDelayTime = setTimeout(   
		                                                function() {   
		                                                    showTip(options, that, e);   
		                                                }, params.delay);   
		                                    } else {   
		                                        showTip(options, this, e);   
		                                    }   
		  
		                                },   
		                                'mouseout' : function(e) {   
		                                    if (options.tipDelayTime)   
		                                        clearTimeout(options.tipDelayTime);   
		                                    options.tooltip.css({   
		                                                'display' : 'none'   
		                                            });   
		                                },   
		                                'mousemove' : function(e) {   
		                                    var that = this;   
		                                    if (options.tipDelayTime) {   
		                                        clearTimeout(options.tipDelayTime);   
		                                        options.tipDelayTime = setTimeout(   
		                                                function() {   
		                                                    showTip(options, that, e);   
		                                                }, params.delay);   
		                                    } else {   
		                                        showTip(options, that, e);   
		                                    }   
		                                }   
		                            });   
		                });   
		  
		            }   
		  
		        });   
		    },   
		    /**
		     * 关闭消息提示功能  
		     * @param {} jq  
		     * @return {}  
		     */  
		    cancelCellTip : function(jq) {   
		        return jq.each(function() {   
		                    var data = $(this).data('datagrid');   
		                    if (data.tooltip) {   
		                        data.tooltip.remove();   
		                        data.tooltip = null;   
		                        var panel = $(this).datagrid('getPanel').panel('panel');   
		                        panel.find('.datagrid-body').undelegate('td',   
		                                'mouseover').undelegate('td', 'mouseout')   
		                                .undelegate('td', 'mousemove')   
		                    }   
		                    if (data.tipDelayTime) {   
		                        clearTimeout(data.tipDelayTime);   
		                        data.tipDelayTime = null;   
		                    }   
		                });   
		    }   
		});  